Boiler-flue cleaner.



0. S. HANSON.

BOILER FLUE CLEANER.

APPLICATION IILBD JULY 1a, 1913.

1,099,297, Patented June 9,1914

/f If INVENYTOR.

A TTORNEY.

UNITED STATES PATENT OFFICE.

OLE s: HANSON, OF HALFA, IOWA.

BOILER-FLUE CLEANER.

To all whom it mar concern:

Be it known t at I, OLE S. HANSON, a citizen of the United States, residing at I-Ialfa, in the county of Emmet, State of Iowa, have invented certain new and useful Improvements in Boiler-Flue Cleaners; and I do declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in boiler tube or flue cleaners.

It has for its object to provide a device adapted to be inserted within a boiler tube to remove scales, sediment or other deposits or accumulations from the inner and outer surfaces of the tube.

It further has for itsobject to provide a device which will effectually and thoroughly clean boiler tubes withourt injury to the tubes.

It further has for its object to provide a device which is simple, durable, inexpensive and compact in construction and exceed ingly easy to operate.

The invention consists in the several features and combination of features as more fully hereinafter described and claimed.

Referring to the drawings: Figure 1 is a side view of my invention applied to a boiler tube or flue and expanded ready for use. Fig. 2 a cross-section view on line 00-01: of Fig. 1. Fig. 3 a detail side view showing the invention in its normal position, before being expanded. Fig. 4]: an end View of the handle portion of the invention carrying the spring arm scrapers. Fig. 5 a longitudinal sectional view of one of :the scraper arms. Figs. 6 and 7 side views of modified forms of the invention.

In the modified form of the invention shown in Fig. 7 the handle portion 18 is provided with two bearings 19 in which the rod 20 carrying the head 21v is mounted.

In the drawings in which like reference characters denote like parts throughout the several views, 1 represents the boiler tube or flue cleaner which comprises two members separate and distinct, a handle 2 made preferably of wood, but which may be made of any other material desired, and provided with recesses 3, on opposite sides, in which are secured by means of screw bolts or screws 4 spring scraper arms 5 each of said arms having a flat rear portion 6 and curved front portion 7, curved to fit the inner con- Specification of Letters Patent.

'Application filed July 18, 1913.

Patented J une 9, 1914.

Serial No. 779,798.

ture of the ends of the spring scraper arms 1 and the inner contour of the boiler tubes or fines and is adapted to be inserted between the spring scraper arms for the purpose of expanding the same against an open ended boiler tube or fine, for instance of a locomotive, in the process of cleaning the same. The rod 10 can also be reciprocated and act as a hammer to cause the spring scraper arms to vibrate against the tube or flue if desired.

In the modified form of the invention shown in Fig. 6, the handle portion 13 is provided with a socket 14 in its end and the head 15 of the rod 16 is provided with an extension 17 which is designed to fit and be reciprocated in the socket 14:, especially when the rod. is to be used as a hammer to vibrate the spring scraper arms and cause the scale or other accumulation to be dislodged-from the tube or flue.

In use it is only necessary to insert the member in the boiler tube or flue of a locomotive, separately from opposite ends of said tube or flue, or place the members together and insert them from the same end of said tube or flue, insert the head between the spring scraper arms until it has expanded the same to closely fit the said tube or flue and then reciprocate the device therein or if the rod is to be used as a hammer, to reciprocate it between said spring scraper arms.

I do not desire to be understood as limiting myself to the specific details of construction and arrangement as herein described and illustrated, as it is manifest that variation and modification may be made in the features or construction and arrangement in theadaptation of the device to various conditions of. use without departing from the spirit and scope of my invention and improvements.

I therefore reserve the right to all such variations and modifications as properly fall within the scope of my invention and the terms of the following claim.

What I claim is with an extension adapted to reciprocate in A device of the character described, con- ,saidsocket, substantially as described. 10 sisting of a member provided With an axial In testimony whereof I aflix my signature socket and with spring arms having their in the presence of two Witnesses.

free ends projecting forwardly, and a mem- OLE S. HANSON. ber provided with a head adapted to be in- Witnesses: serted between said arms from the forward 7 J. S. PETERSON, ends thereof, for expanding said arms and J. E. HANSON.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

